Is it possible to do ssl certificate pinning in Unity iOS

I have been looking at possible certificate validation and actual pinning for HTTPS traffic for Unity iOS. The reading and validation of certificate is possible in .NET but how about Mono and specifically the WWW class? Does anyone have any earlier experience with this?

If its possible in .NET, you can check if the required library functions are supported here. If I recall correctly, Unity uses the mono version of .NET 2.0.